<template>
	<base-page class="base-form" title="签到管理" @back="onCancel()">
		<view class="u-wrap">
			<view class="u-search-box">
				<view class="u-search-inner">
					<u-icon name="search" color="#909399" :size="28"></u-icon>
					<u-input v-model="keyword" type="text" />
					<!-- <text class="u-search-text">搜索</text> -->
				</view>
			</view>
			<view class="u-menu-wrap">
				<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop"
					:scroll-into-view="itemId">
					<view v-for="(item,index) in tabbar" :key="index" class="u-tab-item"
						:class="[current == index ? 'u-tab-item-active' : '']" @tap.stop="swichMenu(index,item)">
						<text class="u-line-1">{{item.title}}</text>
					</view>
				</scroll-view>
				<scroll-view :scroll-top="scrollRightTop" scroll-y scroll-with-animation class="right-box"
					@scroll="rightScroll">
					<view class="page-view">
						<view class="class-item">
							<view class="item-title">
								<text>{{seleLable}}(已签到：{{signCountInfo.signInCount}}/未签到：{{signCountInfo.noSignInCount}})</text>
							</view>
							<view class="" style="color: rgb(41, 121, 255);float: right;right: 10px;" @click="nosign">
								未签到人员信息
							</view>
							<view class="item-container">
							

							</view>
						</view>
						<view v-for="(item,index) in signList" :key="index">
							<u-card>
								<view class="" slot="body">
									<u-parse class="u-body-item-title u-line-2"
										:html="'姓名： '+item.studentInfo.name"></u-parse>
									<u-parse v-show="item.signInAddress!=null"
										class="u-body-item-title u-line-2">签到地址：{{ item.signInAddress }}</u-parse>
								</view>

								<view slot="foot"
									style="display: flex;align-items: center;justify-content: space-between;">
									<view class="u-body-item-title u-line-2" v-if="!item.status">签到状态：<label
											style="color: rgb(41, 121, 255);">已签到</label>
										<!-- <view  class="u-body-item-title u-line-2">签到时间：<label v-else-if="item.status" style="color: rgb(41, 121, 255);">已签到</label> -->
										<view>签到时间：<label style="color: rgb(41, 121, 255);">{{item.signInTime}}</label>
										</view>
									</view>
									<view v-else style="color: red;">未签到</view>
								</view>
							</u-card>

						</view>
					</view>
				</scroll-view>
			</view>
		</view>
		
		<!-- 未签到人员信息弹框 -->
		<u-popup v-model="nosignInshow" mode="bottom" height="350px" :closeable="true">
				<view style="margin-top: 40px;">
					<view class="" v-if="noSignInInfoList.length==0">
						<u-empty text="暂无签到人员信息" mode="list"></u-empty>
					</view>
					<u-cell-group>
						<u-cell-item v-for="(item,index) in noSignInInfoList" :key="index" icon="account" :title="item.name" :arrow="false" :value="item.phone"></u-cell-item>
					</u-cell-group>
				</view>
			</u-popup>
	</base-page>
</template>
<script>
	import classifyData from '@/common/classify.data.js';
	import {
		CourseInfoController,
		StudentSignInController
	} from "@/api";
	export default {
		data() {
			return {
				scrollTop: 0, //tab标题的滚动条位置
				oldScrollTop: 0,
				current: 0, // 预设当前项的值
				seleLable: "",
				menuHeight: 0, // 左边菜单的高度
				menuItemHeight: 0, // 左边菜单item的高度
				itemId: '', // 栏目右边scroll-view用于滚动的id
				tabbar: [],
				menuItemPos: [],
				arr: [],
				scrollRightTop: 0, // 右边栏目scroll-view的滚动条高度
				timer: null, // 定时器
				keyword: "",
				signList: [],
				signCountInfo:{},
				nosignInshow:false,
				selCourseId:"",
				noSignInInfoList:[]
			}
		},
		onLoad() {

		},
		onReady() {
			this.getClassInfoByTeacherId();
			this.getMenuItemTop()
		},
		methods: {
			nosign(){
				this.nosignInshow = true
				let data = {
					courseId: this.selCourseId
				}
				StudentSignInController.getnoSignInInfo(this,data).then(res=>{
					this.noSignInInfoList = res
				})
			},
			onCancel() {
				uni.navigateBack();
			},
			async getClassInfoByTeacherId() {
				
				let res = await CourseInfoController.getCourseByTeacherId(this);
				this.tabbar = res
				this.getAllSign(res[0].id)
				this.selCourseId = res[0].id
				this.getAllSignCount(res[0].id)
				this.seleLable = res[0].title
			},
			getAllSign(val) {
				let data = {
					studentSignInDtoFilter: {
						courseId: val
					}
				}
				CourseInfoController.listSignInByCourseId(this, data).then((res) => {
					this.signList = res
				})
			},

			getAllSignCount(val) {
				let data = {
					courseId: val
				}
				StudentSignInController.getSignCount(this, data).then((res) => {
					// this.signList = res
					
					this.signCountInfo = res

				})
			},
			// 点击左边的栏目切换
			async swichMenu(index, val) {
				if (this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if (index == this.current) return;
				this.scrollRightTop = this.oldScrollTop;
				this.selCourseId  = val.id
				this.getAllSign(val.id);
				this.getAllSignCount(val.id)
				this.seleLable = val.title;
				this.$nextTick(function() {
					this.scrollRightTop = this.arr[index];
					this.current = index;
					this.leftMenuStatus(index);
				})
			},
			// 获取一个目标元素的高度
			getElRect(elClass, dataVal) {
				new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({
						size: true
					}, res => {
						// 如果节点尚未生成，res值为null，循环调用执行
						if (!res) {
							setTimeout(() => {
								this.getElRect(elClass);
							}, 10);
							return;
						}
						this[dataVal] = res.height;
						resolve();
					}).exec();
				})
			},
			// 观测元素相交状态
			async observer() {
				this.tabbar.map((val, index) => {
					let observer = uni.createIntersectionObserver(this);
					// 检测右边scroll-view的id为itemxx的元素与right-box的相交状态
					// 如果跟.right-box底部相交，就动态设置左边栏目的活动状态
					observer.relativeTo('.right-box', {
						top: 0
					}).observe('#item' + index, res => {
						if (res.intersectionRatio > 0) {
							let id = res.id.substring(4);
							this.leftMenuStatus(id);
						}
					})
				})
			},
			// 设置左边菜单的滚动状态
			async leftMenuStatus(index) {
				this.current = index;
				// 如果为0，意味着尚未初始化
				if (this.menuHeight == 0 || this.menuItemHeight == 0) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
					await this.getElRect('u-tab-item', 'menuItemHeight');
				}
				// 将菜单活动item垂直居中
				this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
			},
			// 获取右边菜单每个item到顶部的距离
			getMenuItemTop() {
				new Promise(resolve => {
					let selectorQuery = uni.createSelectorQuery();
					selectorQuery.selectAll('.class-item').boundingClientRect((rects) => {
						// 如果节点尚未生成，rects值为[](因为用selectAll，所以返回的是数组)，循环调用执行
						if (!rects.length) {
							setTimeout(() => {
								this.getMenuItemTop();
							}, 10);
							return;
						}
						rects.forEach((rect) => {
							// 这里减去rects[0].top，是因为第一项顶部可能不是贴到导航栏(比如有个搜索框的情况)
							this.arr.push(rect.top - rects[0].top);
							resolve();
						})
					}).exec()
				})
			},
			// 右边菜单滚动
			async rightScroll(e) {
				this.oldScrollTop = e.detail.scrollTop;
				if (this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if (this.timer) return;
				if (!this.menuHeight) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
				}
				setTimeout(() => { // 节流
					this.timer = null;
					// scrollHeight为右边菜单垂直中点位置
					let scrollHeight = e.detail.scrollTop + this.menuHeight / 2;
					for (let i = 0; i < this.arr.length; i++) {
						let height1 = this.arr[i];
						let height2 = this.arr[i + 1];
						// 如果不存在height2，意味着数据循环已经到了最后一个，设置左边菜单为最后一项即可
						if (!height2 || scrollHeight >= height1 && scrollHeight < height2) {
							this.leftMenuStatus(i);
							return;
						}
					}
				}, 10)
			}
		}
	}
</script>

<style lang="scss" scoped>
	::v-deep .u-card__head {
		display: none !important;
	}

	.u-wrap {
		height: calc(100vh);
		/* #ifdef H5 */
		height: calc(100vh - var(--window-top));
		/* #endif */
		display: flex;
		flex-direction: column;
	}

	.u-search-box {
		padding: 18rpx 30rpx;
	}

	.u-menu-wrap {
		flex: 1;
		display: flex;
		overflow: hidden;
	}

	.u-search-inner {
		background-color: rgb(234, 234, 234);
		border-radius: 100rpx;
		display: flex;
		align-items: center;
		padding: 10rpx 16rpx;
	}

	.u-search-text {
		font-size: 26rpx;
		color: $u-tips-color;
		margin-left: 10rpx;
	}

	.u-tab-view {
		width: 200rpx;
		height: 100%;
	}

	.u-tab-item {
		height: 110rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 26rpx;
		color: #444;
		font-weight: 400;
		line-height: 1;
	}

	.u-tab-item-active {
		position: relative;
		color: #000;
		font-size: 30rpx;
		font-weight: 600;
		background: #fff;
	}

	.u-tab-item-active::before {
		content: "";
		position: absolute;
		border-left: 3px solid $u-type-primary;
		height: 60rpx;
		left: 0;
		top: 20rpx;
	}

	.u-tab-view {
		height: 100%;
	}

	.right-box {
		background-color: rgb(250, 250, 250);
	}

	.page-view {
		padding: 16rpx;
	}

	.class-item {
		margin-bottom: 30rpx;
		background-color: #fff;
		padding: 16rpx;
		height: 50px;
		border-radius: 8rpx;
	}

	.class-item:last-child {
		min-height: 100vh;
	}

	.item-title {
		font-size: 26rpx;
		color: $u-main-color;
		font-weight: bold;
	}

	.item-menu-name {
		font-weight: normal;
		font-size: 24rpx;
		color: $u-main-color;
	}

	.item-container {
		display: flex;
		flex-wrap: wrap;
	}

	.thumb-box {
		width: 33.333333%;
		display: flex;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		margin-top: 20rpx;
	}

	.item-menu-image {
		width: 120rpx;
		height: 120rpx;
	}
</style>